Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

9K speeding up

9K speeding up AJHS nz

QuestionAnswer
mean speed The total distance something travels divided by the total time taken allows you to calculate the thing’s mean or average speed.
speed How fast something is moving. Often measured in metres per second (m/s), miles per hour (mph) or kilometres per hour (km/h).
accelerate Change speed.
air resistance A force that tries to slow down things that are moving through the air. It is a type of friction.
balanced forces When two forces are the same strength, but working in opposite directions.
friction A force that tries to slow things down when two things rub against each other.
unbalanced forces When two forces working in opposite directions are not the same strength.
drag Another name for air resistance or water resistance.
streamlined Giving something a smooth shape to reduce the air resistance or water resistance.
water resistance A force that tries to slow down things that are moving through water. It is a type of friction.
distance–time graph A graph that shows how far something has moved in a certain time.
terminal velocity The maximum speed of an object. Usually only applies to falling objects when the downward force is balanced by drag.
Created by: johncl
Popular Physics sets

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards